Datasheet

AD9516-0 Data Sheet
Rev. C | Page 10 of 80
CLOCK OUTPUT ABSOLUTE TIME JITTER (CLOCK GENERATION USING INTERNAL VCO)
Table 8.
Parameter Min Typ Max Unit Test Conditions/Comments
LVPECL OUTPUT ABSOLUTE TIME JITTER
Application example based on a typical
setup where the reference source is clean,
so a wider PLL loop bandwidth is used;
reference = 15.36 MHz; R = 1
VCO = 2.95 GHz; LVPECL = 491.52 MHz; PLL LBW = 75 kHz 148 fs rms Integration BW = 200 kHz to 10 MHz
342 fs rms Integration BW = 12 kHz to 20 MHz
VCO = 2.95 GHz; LVPECL = 122.88 MHz; PLL LBW = 75 kHz 212 fs rms Integration BW = 200 kHz to 10 MHz
320 fs rms Integration BW = 12 kHz to 20 MHz
VCO = 2.70 GHz; LVPECL = 122.88 MHz; PLL LBW = 187 kHz 184 fs rms Integration BW = 200 kHz to 10 MHz
304 fs rms Integration BW = 12 kHz to 20 MHz
VCO = 2.70 GHz; LVPECL = 61.44 MHz; PLL LBW = 187 kHz 221 fs rms Integration BW = 200 kHz to 10 MHz
345 fs rms Integration BW = 12 kHz to 20 MHz
VCO = 2.58 GHz; LVPECL = 61.44 MHz; PLL LBW = 75 kHz 210 fs rms Integration BW = 200 kHz to 10 MHz
334 fs rms Integration BW = 12 kHz to 20 MHz
CLOCK OUTPUT ABSOLUTE TIME JITTER (CLOCK CLEANUP USING INTERNAL VCO)
Table 9.
Parameter Min Typ Max Unit Test Conditions/Comments
LVPECL OUTPUT ABSOLUTE TIME JITTER Application example based on a typical
setup where the reference source is jittery,
so a narrower PLL loop bandwidth is used;
reference = 19.44 MHz; R = 1
VCO = 2.80 GHz; LVPECL = 155.52 MHz; PLL LBW = 12.8 kHz 513 fs rms Integration BW = 12 kHz to 20 MHz
VCO = 2.95 GHz; LVPECL = 77.76 MHz; PLL LBW = 12.8 kHz 544 fs rms Integration BW = 12 kHz to 20 MHz
CLOCK OUTPUT ABSOLUTE TIME JITTER (CLOCK GENERATION USING EXTERNAL VCXO)
Table 10.
Parameter Min Typ Max Unit Test Conditions/Comments
LVPECL OUTPUT ABSOLUTE TIME JITTER
Application example based on a typical
setup using an external 245.76 MHz VCXO
(Toyocom TCO-2112); reference = 15.36 MHz;
R = 1
LVPECL = 245.76 MHz; PLL LBW = 125 Hz 54 fs rms Integration BW = 200 kHz to 5 MHz
77 fs rms Integration BW = 200 kHz to 10 MHz
109 fs rms Integration BW = 12 kHz to 20 MHz
LVPECL = 122.88 MHz; PLL LBW = 125 Hz 79 fs rms Integration BW = 200 kHz to 5 MHz
114 fs rms Integration BW = 200 kHz to 10 MHz
163 fs rms Integration BW = 12 kHz to 20 MHz
LVPECL = 61.44 MHz; PLL LBW = 125 Hz 124 fs rms Integration BW = 200 kHz to 5 MHz
176 fs rms Integration BW = 200 kHz to 10 MHz
259 fs rms Integration BW = 12 kHz to 20 MHz